/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controller;

import DAO.Util.AdminDAO;
import DAO.Util.CauHoiDAO;
import org.w3c.dom.*;
import org.xml.sax.SAXException;
import Pojo.*;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;


/**
 *
 * @author ducquyen
 */
@WebServlet(name = "ThemCauHoicontroller", urlPatterns = {"/ThemCauHoicontroller"})
public class ThemCauHoicontroller extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException, ParserConfigurationException, SAXException, TransformerConfigurationException, TransformerException {
        response.setContentType("text/html;charset=UTF-8");
         request.setCharacterEncoding("UTF-8");
        PrintWriter out = response.getWriter();
        HttpSession session = request.getSession();
        try {
            String action = request.getParameter("Action");
            if (action != null) {
                if (action.equals("View")) {
                    request.getRequestDispatcher("/ThemCauHoi.jsp").forward(request, response);
                }
                if (action.equals("CustomizeCapdoAdmin")) {
                    List<Capdo> dscapdo = AdminDAO.LayDanhSachCapDo();
                    request.setAttribute("dscapdo", dscapdo);
                    request.getRequestDispatcher("/CustomizeCapdoAdmin.jsp").forward(request, response);
                }
                if (action.equals("Them")) {
                    CauHoi ch = new CauHoi();
                    ch.setNoiDungCauHoi(request.getParameter("noiDungCauHoi"));
                    ch.setLuaChon1(request.getParameter("luaChon1"));
                    ch.setLuaChon2(request.getParameter("luaChon2"));
                    ch.setLuaChon3(request.getParameter("luaChon3"));
                    ch.setLuaChon4(request.getParameter("luaChon4"));
                    ch.setDoKho(Integer.parseInt(request.getParameter("doKhoDe")));
                    ch.setCauDung(Integer.parseInt(request.getParameter("cauTraLoi")));

                 
                    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
                    DocumentBuilder builder = factory.newDocumentBuilder();
                    Document doc = builder.parse(CauHoiDAO.layDuongDanTapTinCauHoi());
                    ch.setMaCauHoi(CauHoiDAO.layMaCauHoiTuFile(doc));
                    CauHoiDAO.themCauHoi(doc, ch);
                    request.getRequestDispatcher("/ThemCauHoi.jsp?ThemCauHoiThanhCong=1").forward(request, response);
                }
            }
        } finally {
            out.close();
        }
    }

    

    

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {
            processRequest(request, response);
        } catch (ParserConfigurationException ex) {
            Logger.getLogger(ThemCauHoicontroller.class.getName()).log(Level.SEVERE, null, ex);
        } catch (SAXException ex) {
            Logger.getLogger(ThemCauHoicontroller.class.getName()).log(Level.SEVERE, null, ex);
        } catch (TransformerConfigurationException ex) {
            Logger.getLogger(ThemCauHoicontroller.class.getName()).log(Level.SEVERE, null, ex);
        } catch (TransformerException ex) {
            Logger.getLogger(ThemCauHoicontroller.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {
            processRequest(request, response);
        } catch (ParserConfigurationException ex) {
            Logger.getLogger(ThemCauHoicontroller.class.getName()).log(Level.SEVERE, null, ex);
        } catch (SAXException ex) {
            Logger.getLogger(ThemCauHoicontroller.class.getName()).log(Level.SEVERE, null, ex);
        } catch (TransformerConfigurationException ex) {
            Logger.getLogger(ThemCauHoicontroller.class.getName()).log(Level.SEVERE, null, ex);
        } catch (TransformerException ex) {
            Logger.getLogger(ThemCauHoicontroller.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
